The Student's Elements of Geology Part 13

FOREIGN.

Marnes a gryphees virgules of Argonne. (Chapter 19.) Lithographic-stone of Solenhofen, with Archaeopteryx. (Chapter 19.)

13. MIDDLE OOLITE.

BRITISH.

Coral rag of Berks.h.i.+re, Wilts, and Yorks.h.i.+re. (Chapter 19.) Oxford clay, with belemnites and Ammonite. (Chapter 19.) Kelloway rock of Wilts and Yorks.h.i.+re. (Chapter 19.)

FOREIGN.

Nerinaean limestone of the Jura.

14. LOWER OOLITE.

BRITISH.

Cornbrash and forest marble. (Chapter 19.) Great or Bath oolite of Bradford. (Chapter 19.) Stonesfield slate, with marsupials and Araucaria. (Chapter 19.) Fuller's earth of Bath. (Chapter 19.) Inferior oolite. (Chapter 19.)

LIAS.

15. LIAS.

Upper Lias, argillaceous, with Ammonites striatulus. (Chapter 20.) Shale and limestone, with Ammonites bifrons. (Chapter 20.) Middle Lias or Marlstone series, with zones containing characteristic Ammonites.

(Chapter 20.) Lower Lias, also with zones characterised by peculiar Ammonites. (Chapter 20.)

TRIAS.

16. UPPER TRIAS.

BRITISH.

Rhaetic, Penarth or Avicula contorta beds (beds of pa.s.sage). (Chapter 21.) Keuper or Upper New Red sandstone, etc. (Chapter 21.) Red shales of Ches.h.i.+re and Lancas.h.i.+re, with rock-salt. (Chapter 21.) Dolomite conglomerate of Bristol (Chapter 21.)

FOREIGN.

Keuper beds of Germany. (Chapter 21.) St. Ca.s.sian or Hallstadt beds, with rich marine fauna. (Chapter 21.) Coal-field of Richmond, Virginia. (Chapter 21.) Chatham coal-field, North Carolina. (Chapter 21.)

17. MIDDLE TRIAS.

BRITISH.

Wanting.

FOREIGN.

Muschelkalk of Germany. (Chapter 21.)

18. LOWER TRIAS.

BRITISH.

Bunter or Lower New Red sandstone of Lancas.h.i.+re and Ches.h.i.+re. (Chapter 21.)

FOREIGN.

Bunter-sandstein of Germany. (Chapter 21.) Red sandstone of Connecticut Valley, with footprints of birds and reptiles.

(Chapter 21.)

PRIMARY OR PALAEOZOIC.

PERMIAN.

19. PERMIAN.

BRITISH.

Upper Permian of St. Bees' Head, c.u.mberland. (Chapter 22.) Middle Permian, magnesian limestone, and marl-slate of Durham and Yorks.h.i.+re, with Protosaurus. (Chapter 22.) Lower Permian sandstones and breccias of Penrith and Dumfriess.h.i.+re, intercalated. (Chapter 22.)

FOREIGN.

Dark-coloured shales of Thuringia. (Chapter 22.) Zechstein or Dolomitic limestone. (Chapter 22.) Mergel-schiefer or Kupfer-schiefer. (Chapter 22.) Rothliegendes of Thuringia, with Psaronius. (Chapter 22.) Magnesian limestones, etc., of Russia. (Chapter 22.)

CARBONIFEROUS.

20. UPPER CARBONIFEROUS.

BRITISH.

Coal-measures of South Wales, with underclays inclosing Stigmaria. (Chapter 23.) Coal-measures of north and central England. (Chapter 23.) Millstone grit. (Chapter 23.) Yoredale series of Yorks.h.i.+re. (Chapter 23.) Coal-field of Kilkenny with Labyrinthodont. (Chapter 23.)

FOREIGN.

Coal-field of Saarbruck, with Archegosaurus. (Chapter 23.) Carboniferous strata of South Joggins, Nova Scotia. (Chapter 23.) Pennsylvania coal-field. (Chapter 23.)

21. LOWER CARBONIFEROUS.

BRITISH.

Mountain limestone of Wales and South of England. (Chapter 24.) Same in Ireland. (Chapter 24.) Carboniferous limestone of Scotland alternating with coal-bearing sandstones.

(Chapter 23.) Erect trees in volcanic ash in the Island of Arran. (Chapter 30.)

FOREIGN.

Mountain limestone of Belgium. (Chapter 24.)

DEVONIAN OR OLD RED SANDSTONE.

22. UPPER DEVONIAN.

BRITISH.

Yellow sandstone of Dura Den, with Holoptychius, etc. (Chapter 25.); and of Ireland with Anodon Jukesii. (Chapter 25.) Sandstones of Forfars.h.i.+re and Perths.h.i.+re, with Holoptychius, etc. (Chapter 25.) Pilton group of North Devon. (Chapter 25.) Petherwyn group of Cornwall, with Clymenia and Cypridina. (Chapter 25.)

FOREIGN.

Clymenien-kalk and Cypridinen-schiefer of Germany. (Chapter 25.)

23. MIDDLE DEVONIAN.

BRITISH.

Bituminous schists of Gamrie, Caithness, etc., with numerous fish. (Chapter 25.) Ilfracombe beds with peculiar trilobites and corals. (Chapter 25.) Limestones of Torquay, with broad-winged Spirifers. (Chapter 25.)

FOREIGN. (Chapter 25.) Eifel limestone, with underlying schists containing Calceola. (Chapter 25.) Devonian strata of Russia. (Chapter 25.)

24. LOWER DEVONIAN.